The results analyzed by FT-IR and TEM show that the epoxy resin has been grafted to the water-borne polyurethane and the epoxy groups and hydroxyl of the epoxy resin are all taken part in the reaction.

• 傅立叶变换红外光谱和透射电镜分析结果表明，环氧树脂已接枝到水性聚氨酯分子上，且环氧树脂的羟基和环氧基全部参与了发应。